0.7
===

 - Implement timestamp support (Elijah Newren)

0.6
===

  - Fix some fairly serious memory leaks (Tommi Leino)
  - Cygwin build fix (Masahiro Sakai)

0.5
===

  - Fix use of uninitialized memory when closing down a display (Joe Marcus Clarke)
  - Make xmessage handling use per-display instead of global variables, 
    fixing total hosage on multihead X servers
  - set _NET_STARTUP_ID as a UTF-8 string
  - fix a crash caused by zero-length message data
  - include startup-notification.txt specification in the distribution